refactor(WEB): 전체 actions.ts에 공통 API 유틸 적용

- buildApiUrl / executePaginatedAction 패턴으로 전환 (40+ actions 파일)
- 직접 URLSearchParams 조립 → buildApiUrl 유틸 사용
- 수동 페이지네이션 메타 변환 → executePaginatedAction 자동 처리
- HandoverReportDocumentModal, OrderDocumentModal 개선
- 급여관리 SalaryManagement 코드 개선
- CLAUDE.md Server Action 공통 유틸 규칙 정리

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/components/board/DynamicBoard/actions.ts

@@ -2,6 +2,7 @@
 
 
 import { executeServerAction, type ActionResult } from '@/lib/api/execute-server-action';
+import { buildApiUrl } from '@/lib/api/query-params';
 import type {
   PostApiData,
   PostPaginationResponse,
@@ -10,22 +11,19 @@ import type {
   CommentsApiResponse,
 } from '@/components/customer-center/shared/types';
 
-const API_URL = process.env.NEXT_PUBLIC_API_URL;
-
 // ===== 게시글 API =====
 
 export async function getDynamicBoardPosts(
   boardCode: string, filters?: PostFilters
 ): Promise<ActionResult<PostPaginationResponse>> {
-  const params = new URLSearchParams();
-  if (filters?.search) params.append('search', filters.search);
-  if (filters?.is_notice !== undefined) params.append('is_notice', String(filters.is_notice));
-  if (filters?.status) params.append('status', filters.status);
-  if (filters?.per_page) params.append('per_page', String(filters.per_page));
-  if (filters?.page) params.append('page', String(filters.page));
-  const queryString = params.toString();
   return executeServerAction<PostPaginationResponse>({
-    url: `${API_URL}/api/v1/boards/${boardCode}/posts${queryString ? `?${queryString}` : ''}`,
+    url: buildApiUrl(`/api/v1/boards/${boardCode}/posts`, {
+      search: filters?.search,
+      is_notice: filters?.is_notice,
+      status: filters?.status,
+      per_page: filters?.per_page,
+      page: filters?.page,
+    }),
     errorMessage: '게시글 목록 조회에 실패했습니다.',
   });
 }
@@ -34,7 +32,7 @@ export async function getDynamicBoardPost(
   boardCode: string, postId: number | string
 ): Promise<ActionResult<PostApiData>> {
   return executeServerAction<PostApiData>({
-    url: `${API_URL}/api/v1/boards/${boardCode}/posts/${postId}`,
+    url: buildApiUrl(`/api/v1/boards/${boardCode}/posts/${postId}`),
     errorMessage: '게시글을 찾을 수 없습니다.',
   });
 }
@@ -44,7 +42,7 @@ export async function createDynamicBoardPost(
   data: { title: string; content: string; is_secret?: boolean; is_notice?: boolean; custom_fields?: Record<string, string> }
 ): Promise<ActionResult<PostApiData>> {
   return executeServerAction<PostApiData>({
-    url: `${API_URL}/api/v1/boards/${boardCode}/posts`,
+    url: buildApiUrl(`/api/v1/boards/${boardCode}/posts`),
     method: 'POST',
     body: data,
     errorMessage: '게시글 등록에 실패했습니다.',
@@ -56,7 +54,7 @@ export async function updateDynamicBoardPost(
   data: { title?: string; content?: string; is_secret?: boolean; is_notice?: boolean; custom_fields?: Record<string, string> }
 ): Promise<ActionResult<PostApiData>> {
   return executeServerAction<PostApiData>({
-    url: `${API_URL}/api/v1/boards/${boardCode}/posts/${postId}`,
+    url: buildApiUrl(`/api/v1/boards/${boardCode}/posts/${postId}`),
     method: 'PUT',
     body: data,
     errorMessage: '게시글 수정에 실패했습니다.',
@@ -67,7 +65,7 @@ export async function deleteDynamicBoardPost(
   boardCode: string, postId: number | string
 ): Promise<ActionResult> {
   return executeServerAction({
-    url: `${API_URL}/api/v1/boards/${boardCode}/posts/${postId}`,
+    url: buildApiUrl(`/api/v1/boards/${boardCode}/posts/${postId}`),
     method: 'DELETE',
     errorMessage: '게시글 삭제에 실패했습니다.',
   });
@@ -79,7 +77,7 @@ export async function getDynamicBoardComments(
   boardCode: string, postId: number | string
 ): Promise<ActionResult<CommentsApiResponse>> {
   return executeServerAction<CommentsApiResponse>({
-    url: `${API_URL}/api/v1/boards/${boardCode}/posts/${postId}/comments`,
+    url: buildApiUrl(`/api/v1/boards/${boardCode}/posts/${postId}/comments`),
     errorMessage: '댓글 목록 조회에 실패했습니다.',
   });
 }
@@ -88,7 +86,7 @@ export async function createDynamicBoardComment(
   boardCode: string, postId: number | string, content: string
 ): Promise<ActionResult<CommentApiData>> {
   return executeServerAction<CommentApiData>({
-    url: `${API_URL}/api/v1/boards/${boardCode}/posts/${postId}/comments`,
+    url: buildApiUrl(`/api/v1/boards/${boardCode}/posts/${postId}/comments`),
     method: 'POST',
     body: { content },
     errorMessage: '댓글 등록에 실패했습니다.',
@@ -99,7 +97,7 @@ export async function updateDynamicBoardComment(
   boardCode: string, postId: number | string, commentId: number | string, content: string
 ): Promise<ActionResult<CommentApiData>> {
   return executeServerAction<CommentApiData>({
-    url: `${API_URL}/api/v1/boards/${boardCode}/posts/${postId}/comments/${commentId}`,
+    url: buildApiUrl(`/api/v1/boards/${boardCode}/posts/${postId}/comments/${commentId}`),
     method: 'PUT',
     body: { content },
     errorMessage: '댓글 수정에 실패했습니다.',
@@ -110,8 +108,8 @@ export async function deleteDynamicBoardComment(
   boardCode: string, postId: number | string, commentId: number | string
 ): Promise<ActionResult> {
   return executeServerAction({
-    url: `${API_URL}/api/v1/boards/${boardCode}/posts/${postId}/comments/${commentId}`,
+    url: buildApiUrl(`/api/v1/boards/${boardCode}/posts/${postId}/comments/${commentId}`),
     method: 'DELETE',
     errorMessage: '댓글 삭제에 실패했습니다.',
   });
-}
+}